Topic(s): Cyclical and Natural Changes, Anthropogenic Changes, Measurements and Observations, Paleoclimate Records
Grade Level: Intermediate (3-5), Middle (6-8), High School (9-12), College Lower (13-14)
This NASA animation shows the levels of atmospheric carbon dioxide over different time scales. Viewers can compare the last 400,000 years, last 1000 years, and last 25 years. The data come from the Lake Vostok ice cores (400,000 BC to about 4000 BC), Law Dome ice cores (1010 AD to 1975 AD) and Mauna Loa observations (1980 to 2005).